[tex]b=24 \\
M_{a} \frac{24+1,00000005}{2}
\\ M_{a} =12,5[/tex][tex]8- \sqrt[3]{7} + \frac{1}{2} (3+ \sqrt{7} ) ^{2} = \\
=8- \sqrt[3]{7} + \frac{1}{2} *5,64575131 ^{2}
\\ =8-7,93725393+ \frac{1}{2} *31,8745079 \\
=8-7,93725393+ \frac{31,8745079}{2}
\\ =0,06274607+ \frac{31,8745079}{2}
\\ = \frac{2,0000001}{2}
\\ =1,00000005[/tex]
